E-Flora BC: Electronic Atlas of the Flora of British Columbia

General:
Biennial or short-lived perennial herb from a taproot; stems erect, several, branched, usually glabrous and more or less glaucous, 20-80 cm tall.

Leaves:
Basal leaves lacking; stem leaves opposite, oblanceolate to broadly lanceolate, stalkless, 5-10 cm long, glaucous; stipules lacking.

Flowers:
Inflorescence of numerous flowers borne in whorls around the stem; petals 5, white, deeply 2-cleft at the tip, stalklike at the bases; sepals 5, united, forming a tube 8-12 mm long, pinkish, somewhat inflated and egg-shaped, obscurely net-veined above the middle.

Fruits:
Capsules 10-14 mm long; seeds 1-1.5 mm long, conspicuously pimply.